John murray



@einen tartes ttut- @Hirn IMPNOVBD WHISTLE Por. snnn AND OTHER BNeiNNs.I

' "lf/igt Stimuli mimi in iu tlgrs triers ntcnt mit nntug ritt nt ttc samt.

TO ALL PERSONS 'TO WHOM THESE `PRESENTS SHALL COME: Y A

`Be it known that I, JOHX MURRAY, of New York, county of New York, and State of New York', have invented a new and usefull Improvement in'Whistlcs for Steam `and other Engines, and do hereby declare the same is fully described and represented in the following specification and theaceoinpanying drawings, of which- Figure 1 represents, a side elevntion.

Figure 2, arertieal section.

This invention relates to a novel arrangement' of patterns and cores` by which I lu enabled to produce ,L

whistle for steam or other engines in one entire piece, as shown in the drawings', und to eHeet this object I merely make a core which corresponds in forni with the interior el" the bell, G, :ind fills up the.space between ythe end of the bell and the plate, D, the said core having through its centre a hole for formation el' the spindle,

F. I also make another core corresponding; in form with the interior of the baseer part B C oi' the whistle, this latter core having apertures for formation of the plate and cap connections, H H. I next place the pattern, whose forni is similar to the exterior of the whistle, (to be cash) in a sectional ilasl: containing; nioultlersY clay, and, having obtained the desired impression, I now remove' the pattern and in the centre ot' the space thus formed introduce the above-described cores. I next pour the molten metal into the spaces left in the cores and between them and the sand, and thus I produce in one continuous niece a ste-nin whistle.

Having'described the nature and iii-.inner ot' producing my invention, I will new oeseribe the. production itself.

In thedrawings, A represents the henagonal neck, with 4female screw B, for connectiniar the whistle to the deine or boiler of the engine. C is the eup which forms, with the tongue or plate l), the circular aperture or 'steam exit, E. F is the spindle which sustains the bell, G, of the whistle, and l'I II ere the plate and-cup connections. I It is a. feet well known to engineers and others that the steam whistle in present'use, being composedl i' c s is lia-ble to worl; loose become lenkv and danfferous, because ofthe'constnnt 'ur or vibration or severa p C c., g C of the engine. It is also well known to manufacturers that the parts which comprise the steam whistle require very nice iitting, and are in consequence expensive. hose diilieulties are obviatod by my steam whistle, which I cast altogether and at the saine time in one continuous piece, (corinr out the hollow portions thereof.) l next turn out the circular aperture or steam exit, E, nud finish' the exterior, when my steam whistle is now rea-fly to be applied to a steam or otherengine, and the saine being in one continuous piece will not work loose or bceenie lealiv, the ring of the hell, G, more clear and distinct, end can be manufactured for twenty-five per cent. of the cost of steam whistles in present use. The neck, A, may be so east :is to receive the cock or valve,

if desired.

what I claim, sind desire to secure by Letters Patent, 1s- The :ibeve-describe'il` whistle for steam and other engines as a new article of manufacture, substantially as and for the purposes set forth.

In testimonv wher-cot` I have l'i-,ereunto set in v signatur-n LionN MURRAY,

Witnesses A.. Nniti., WM. Il. Sin'rn. 

